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| injection | Test Condition | Test Method | LG CHEM KOREA/TR557 NP |
|---|---|---|---|
| Back pressure | 29.4 to 58.8 Mpa | ||
| Temperature at the front of the material cylinder | 200 to 220 °C | ||
| Spray nozzle temperature | 190 to 220 °C | ||
| Screw speed | 30 to 60 rpm | ||
| Mold temperature | 40 to 60 °C | ||
| drying temperature | 80 to 90 °C | ||
| Processing (melt) temperature | 190 to 220 °C | ||
| Temperature in the middle of the barrel | 190 to 210 °C | ||
| drying time | 2.0 to 4.0 hr | ||
| Temperature at the rear of the barrel | 180 to 200 °C | ||
| mechanical properties | Test Condition | Test Method | LG CHEM KOREA/TR557 NP |
| elongation | Yield, 23°C, 3.20 mm, Injection | ASTM D638 | > 5.0 % |
| Break, 23°C, 3.20 mm, Injection | ASTM D638 | 15 % | |
| Tensile modulus | 23°C, 3.20 mm, Injection | ASTM D638 | 2050 Mpa |
| bending strength | 23°C, 3.20 mm, Injection | ASTM D790 | 71.0 Mpa |
| tensile strength | Yield, 23°C, 3.20 mm, Injection | ASTM D638 | 48.0 Mpa |
| Bending modulus | 23°C, 3.20 mm, Injection | ASTM D790 | 2250 Mpa |
| thermal performance | Test Condition | Test Method | LG CHEM KOREA/TR557 NP |
| Hot deformation temperature | 1.8 MPa, Unannealed, 6.40 mm, Injection | ASTM D648 | 81.0 °C |
| RTI Elec | UL 746 | 50.0 °C | |
| RTI Imp | UL 746 | 50.0 °C | |
| Vicat softening temperature | ASTM D15257 | 89.0 °C | |
| RTI | UL 746 | 50.0 °C | |
| optical performance | Test Condition | Test Method | LG CHEM KOREA/TR557 NP |
| transmissivity | 3200 μm, Injection | ASTM D1003 | 90.0 % |
| turbidity | Injection | ASTM D1003 | 2.0 % |
| Physical properties | Test Condition | Test Method | LG CHEM KOREA/TR557 NP |
| melt mass-flow rate | 220°C/10.0 kg | ASTM D1238 | 21 g/10 min |
| Shrinkage rate | 23°C, 3.20 mm, Injection，Flow | ASTM D955 | 0.40 - 0.70 % |
| flammability | Test Condition | Test Method | LG CHEM KOREA/TR557 NP |
| UL flame retardant rating | 1.5 mm | UL 94 | HB |
| 3.0 mm | UL 94 | HB | |
| hardness | Test Condition | Test Method | LG CHEM KOREA/TR557 NP |
| Rockwell hardness | R-Scale, 23°C, Injection | ASTM D785 | 107 |